Fan controller

Details Fan controller Fan controller

2007-09-21

2010-06-29

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

Electrical conditions in circuit other than controlled motor...

C318S484000, C318S472000, C318S473000

Reexamination Certificate

active

07746016

ABSTRACT:
A fan controller includes an input module and an output module. The input module is used for receiving a power supply signal from a power supply which is used for providing power to a fan, and outputting a trigger signal when the power supply signal when the power supply turns off. The output module is used for providing power for the fan when the power supply turns off. The output module includes a timer circuit and an integrator circuit. The timer circuit is coupled to the input module, and is used for receiving the trigger signal, and providing the power for the fan according to the trigger signal for a predetermined amount of time. The integrator circuit is used for providing a threshold voltage for the timer circuit, the threshold voltage tripping termination of the power provided by the timer circuit.

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patent: 6135718 (2000-10-01), Yang
patent: 6265790 (2001-07-01), Vogman
patent: 6400045 (2002-06-01), Hosokawa et al.
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patent: 7008061 (2006-03-01), Yano
patent: 7492112 (2009-02-01), Huang et al.
patent: 2009/0184584 (2009-07-01), Hermann et al.
patent: 1470971 (2004-01-01), None
patent: 2723741 (2005-09-01), None

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